This gets my vote for no other reason than Microsoft is trying to force people onto SaaS. As a former Exchange engineer, I have to say, not pleased. I watched the way they have held back features from Exchange in favor of putting them in Office 365.

They are doing their best to make the software solutions only make sense for large clients, they are trying to push out small and mid size companies, but really, more than that, just anyone who isn't a mega corp it feels like.